C111123313331323113313331333133313231333132311312111133132233132322313233331   >>    C11112331333132311331333133313331323133313231131211113313223313232231323333   <<    C111123313331323113313331333133313231333132311312111133132233132322313233333   >>      C111123313331323113313331333133313231333132311312111133132233132322313233332   >>